Are you seeing the error “QBDBMgrN not running on this computer” while using copyright Desktop? This issue typically prevents you from accessing company files in multi-user mode and can halt your accounting workflow. Common Causes of the Error: Outdated copyright Database Server Manager Improper firewall configuration blocking copyright Damaged .ND file or network issues ... https://www.apsense.com/article/855026-top-ways-to-fix-unable-to-backup-copyright-company-file.html